Answer:
Decomposers - Oranisms that decompose, or break down, dead or decaying organisms.
Tertiary Consumers - Organisms that obtain nutrients and energy by eating primary and secondary consumers. They are at the topmost level of the food chain.
Secondary Consumers - Organsims that prey on primary consumers for their food and energy.
Primary Consumers - Organisms that feed on primary producers, or plants for energy. They are herbivores, and make up the second trohpic level.
Producers - They are autotrophs, or organisms that produce their own food using light, or chemical energy. Plants are the main producers in many ecosystems. Others include algae, and bacteria.
Explanation:
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